Role of Σ5, (210), [001] CSL Boundary on Displacement Cascade in bcc Fe

被引：1

作者：

Nandi, Prithwish K. ^{[1
]}

Dholakia, Manan ^{[1
]}

Valsakumar, M. C. ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Div Mat Phys, Kalpakkam 603102, Tamil Nadu, India

来源：

SOLID STATE PHYSICS, PTS 1 AND 2 | 2012年 / 1447卷

关键词：

radiation damage; grain boundary; molecular dynamics;

D O I：

10.1063/1.4710217

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Molecular dynamics simulations were carried out to understand the role of grain boundaries (GB) on radiation damage in bcc Fe bicrystal. The calculations were performed for a Sigma 5, (210), [001] symmetric tilt grain boundary for different cases where the primary knock-on atom (PKA) is placed at distances of a(csl), to 15a(csl), from the grain boundary plane. Here, a(csl), is lattice parameter of the coincidence site lattice. Present study shows that the influence of GB on the numbers of surviving defects within a grain is confined within a distance, d(opt) < 9a(csl). Our studies also indicate that the grain boundary acts as a reservoir for defects.

引用

页码：743 / 744

页数：2